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首页> 外文期刊>Journal of Polymers and the Environment >Fastness Properties and Color Analysis of Natural Indigo Dye and Compatibility Study of Different Natural Reducing Agents
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Fastness Properties and Color Analysis of Natural Indigo Dye and Compatibility Study of Different Natural Reducing Agents

机译：天然靛蓝染料的牢度特性和颜色分析以及不同天然还原剂的相容性研究

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摘要

Conventional reduction process of indigo dyes with sodium dithionite produced lots of harmful byproducts and caused environmental pollution. A new reduction method should be introduced to textile dyer so that reduction can be less hazardous with low impact on the environment and energy resources. This study investigates an alternative reducing agent obtained from natural resources. Three different types of reducing agent are used, extracted from the Date palm, Banana and Apple by boiling method. To compare their effect on the reduction of the natural indigo dyestuff, different color fastness properties, pH and the color yield (K/S) were measured according to the concentration of reducing agent and hydrated lime concentration. Outcomes show that K/S value varies with the amount of reducing agent. Average higher value shows from date palm among the three reducing agents at 25 A degrees C & pH range 10.8-11. By using natural reducing agents, it can be possible to get satisfactory colorfastness and depth of shed compared to a synthetic reducing agent.
机译：传统的用连二亚硫酸钠还原靛蓝染料的过程会产生大量有害副产物，并造成环境污染。应将一种新的还原方法引入纺织品染色机中，以使还原的危害性降低，对环境和能源的影响也较小。这项研究调查了从自然资源获得的替代还原剂。使用三种不同类型的还原剂，通过沸腾法从椰枣，香蕉和苹果中提取。为了比较它们对还原天然靛蓝染料的影响，根据还原剂的浓度和熟石灰的浓度，测量了不同的色牢度特性，pH值和色产率（K / S）。结果表明，K / S值随还原剂的量而变化。从更高的平均值可以看出，在25 A摄氏度和pH范围10.8-11下，三种还原剂中的枣椰树。通过使用天然还原剂，与合成还原剂相比，可以获得令人满意的色牢度和脱落深度。

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